Chimney top and ventilator



(No Model.) JI'. PINCE.;

GHIMNEY TOP AND VBNTILATOR.

N01 517,797. Patented Apr. 3,1894.

Wilrycssc v UNITED 'STATES VPATENT OFFICE.

J'AMEsT. Einen,` 0E wELLsvILLE, OHIO. i

cHllvlNi-:Y TOP AND VNTILATOR.

SPECIFICATION formingpart o f Letters Patent N o. 517,797, dated April 3, 1894.

Application filed June 29, Serial No. l179,130. (No model.)

ed as to obviate positively any downdraft or cross-draft whereby. the rip-draft would become choked, obstructed and decreased, and to utilize the wind from whichever quarter it may blow to increase the up-draft, by commingling with it and moving in abody in the same direction as the up-draft, wherebyas a result, the chimney is kept free from soot and a strong 11p-draft always maintained.

With these and other objects in View the invention consists in certain features of construction hereinafter speciied and particularly pointed out in the claims.

Referring to the drawingsz-Figure 1 is a perspective View of a'chimney top embodying my invention. verse sectional view.

Like numerals indicate like parts in both iigures of the drawings;

In the practice of my invention I construct the hereinafter described top of any suitable material, such for instance as galvanized iron, terra-cotta, dac., and I therefore do not limit myself in this regard.

'I preferably form the top in three sections which I will designate as the bottom or'basesection 1, the intermediate-section 2, and the upper or cap-section 3. The section 1, is of such shape and size in cross-section as toadapt it to fit over the upper end of a chimney and thereforeispreferablysquareor'oblong. From its lower end it tapersupward in the shape of a truncated cone, terminating in4 the upper outlet opening 4. Its exterior is surrounded by an intermediate horizontal recessed ledge 5, and in the sameis supported and seated the lower end of the intermediate section 2.

The intermediate section 2, corresponds in thickness with that of the ledge and is larger than the section 1, so that when seated thereupon an intermediate air-space 6, will exist between the two sections. The bottom of the Fig. 2 is a vertical trans` section 2 is "provided with a reduced rib 7, which tits in the groove of the ledge 5. The section 2 projects above the upper end of the section 1 at which point it terminates in a contracted neck 8, which is surrounded by a Bange 9. Each of the faces or walls of the section 2 is between the upper and lower ends and the corners provided with inlet openings, and in these openings is seated and suitably secured a series of horizontally disposed parallel laterallyinclined slats 10,which are spaced apart and designed to deflect air from the exterior up through the passages or lspaces 6, and through the contracted neck 8.

The section 2, I preferably surmount by a conical cap 11, the bottom of which is seated 'in the space formed by the flange 9 and Wall of the section 2, and this cap may be given any external ornamental design desired, such for instance as I have shown,namely, the imitation of an eagle. The wall of the section 3 or cap section is provided with the outlet slots or openings 12. This completes the construction of the chimney top.

It is 'obvious that regardless of the quarter from which the wind may blow it is admitted to the interior of the top and is deiiected upward therein by means` of the inclined walls or sides of the base section 1, and the slatted walls of the section 2, until finally it meets the up-draft of the chimney in the neck 8, from which it emerges together with the smoke through the exit openings 12.

It is well known that down-drafts of the chimney, which it is the desire and object of this invention to overcome, are caused simply by the external wind or atmosphere being stronger and overcoming the 11p-draft. In my invention it Will'be seen that the volume of air admitted through the slatted openings is so far in excess and-so much stronger than any air that may blow in through the openings 12 that such latter air is absolutely prevented from gaining access, so that said openings 12 serve merely as outlets for the discharge of the up-draft which is a combination of the smoke from the chimney and the body of air admitted from the exterior through the slatted openings and commingled with the smoke.

I do not limit my invention to the precise details of construction herein shown anddescribed, but hold that I may vary the same to IOO any degree and extent within the knowledge of the skilled mechanic without departing from the principle herein elucidated or sacri ficing any of the advantages of construction shown.

My invention serves admirably as a ventilator and has been tried in this capacity and found to give the best results, and I would have it understood that the herein described chimney top may not only serve as a ventilater, but the same is well adapted for use in connection with the ordinary chimney pipes employed on trains, street cars and other similar objects in which regular chimneys are not built.

Having described my invention, what I claim is- 1. The herein-described chimney top, the

same consisting of a conical hollow base open at top and bottom and having imperforate sides, a conical section surmounting the same combining therewith to form an intermediate air space terminating there-above in a contracted open neck and having air inlets therebelow, and a discharge cap or section surmounting the same, substantially as specified.

2. The herein-described chimney top, consisting of the conical open ended hollow section, adapted to surmount a chimney and provided with a surrounding grooved ledge midway the same, an intermediate section exceeding in size and arranged upon the ledge and having a rib seated in the groove thereof,

said' intermediate section terminating above the lower section in a contracted neck having a surrounding flange and opposite said lower 'section provided with inlet openings having a series of inclined slats and combining with the lower section to form converging air-passages and a conical cap section seated upon the contracted neck and embraced by the Han ge and provided with a series of dischargeopenings, substantially as specified.

3. The herein-described chimney top, consisting of the conical open ended hollow section, adapted to surmount a chimney, an intermediate sect-ion exceeding in size and arranged upon the lower section, said intermediate section terminating above the lower sec tion in a contracted neck and opposite said lower section provided with inlet openings `having a series of inclined slats and combining with the lower section to form converging air-passages, and a conical cap section seated upon the contracted neck and provided with a series of discharge-openings, substantially as specified.

In testimony that I claim the foregoing as myownI have hereto aiiixed my signature in the presence of two witnesses.

J AMES T. FINCH.

Witnesses:

JOHN H. ELLIOTT, THos. N. JONES. 

